A body of mass 5.0 kg is suspended by a spring which stretches 10 cm when the mass is attached.It is then displaced downward an additional 5.0 cm and released.Its position as a function of time is approximately
A)y = -0.10 sin 9.9t
B)y = 0.10 cos 9.9t
C)y = -0.10 cos (9.9t + .1)
D)y = 0.10 sin (9.9t + 5)
E)y = -0.05 cos 9.9t

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The Answer of A body of mass 5.0 kg is suspended by a spring which stretches 10 cm when the mass is attached.It is then displaced downward an additional 5.0 cm and released.Its position as a function of time is approximately
A)y = -0.10 sin 9.9t
B)y = 0.10 cos 9.9t
C)y = -0.10 cos (9.9t + .1)
D)y = 0.10 sin (9.9t + 5)
E)y = -0.05 cos 9.9t

A Body of Mass 5